private ChunkStream.State GetChunkSize(byte[] buffer, ref int offset, int size)
{
char c = '\0';
while (offset < size)
{
c = (char)buffer[offset++];
if (c == '\r')
{
if (this.sawCR)
{
ChunkStream.ThrowProtocolViolation("2 CR found");
}
this.sawCR = true;
}
else
{
if (this.sawCR && c == '\n')
{
break;
}
if (c == ' ')
{
this.gotit = true;
}
if (!this.gotit)
{
this.saved.Append(c);
}
if (this.saved.Length > 20)
{
ChunkStream.ThrowProtocolViolation("chunk size too long.");
}
}
}
if (!this.sawCR || c != '\n')
{
if (offset < size)
{
ChunkStream.ThrowProtocolViolation("Missing \\n");
}
try
{
if (this.saved.Length > 0)
{
this.chunkSize = int.Parse(ChunkStream.RemoveChunkExtension(this.saved.ToString()), NumberStyles.HexNumber);
}
}
catch (Exception)
{
ChunkStream.ThrowProtocolViolation("Cannot parse chunk size.");
}
return(ChunkStream.State.None);
}
this.chunkRead = 0;
try
{
this.chunkSize = int.Parse(ChunkStream.RemoveChunkExtension(this.saved.ToString()), NumberStyles.HexNumber);
}
catch (Exception)
{
ChunkStream.ThrowProtocolViolation("Cannot parse chunk size.");
}
if (this.chunkSize == 0)
{
this.trailerState = 2;
return(ChunkStream.State.Trailer);
}
return(ChunkStream.State.Body);
}
